A weaker yen is positive for Japanese exporters as it inflates their repatriated profits.Tokyo: Tokyo stocks rose Friday morning as Toyota and Honda chalked up gains, with investors looking to a key meeting of the world's top central bankers later in the day.

Analysts pointed to unease over the banker summit in Jackson Hole, Wyoming, as it could signal a more dramatic shift away from the easy money policies of recent years.

At the same time, investors are keen to see if Federal Reserve chair Janet Yellen emphasises low inflation, which would be seen as a signal the US central bank could abandon plans for a third interest rate hike this year.

European Central Bank officials have flagged the strong euro as a concern, a point that could affect plans to unwind its stimulus programme.

"Investors are likely taking a wait-and-see attitude ahead of speeches by Fed chair Yellen and ECB president (Mario) Draghi at the Jackson Hole summit," Okasan Online Securities said in a commentary.

The benchmark Nikkei 225 index gained 0.45 percent, or 86.59 points, to 19,440.36 by the break, while the Topix index of all first-section issues was up 0.35 percent, or 5.58 points, at 1,597.78.

In forex markets, the dollar fetched 109.65 yen, up from 109.26 yen in New York late Thursday.

A weaker yen is positive for Japanese exporters as it inflates their repatriated profits.

Prices of most SUVs were cut between Rs 1.1 lakh and Rs 3 lakh following the implementation of GST, which subsumed over a dozen central and state levies like excise duty, service tax, and VAT from July 1.